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Determining the Gibbs Energy Contributions of Ion and Electron Transfer for Proton Insertion in ϵ‐MnO2
- Electrochemically active ϵ‐MnO2 and ɣ‐MnO2 as tunnel‐type host‐guest structures have been extensively studied by crystallography and electrochemical techniques for application in battery cathode materials. However, the Gibbs energies of the underlying ion and electron transfer processes across the electrode interfaces have not yet been determined. Here we report for the first time these data for ϵ‐MnO2. This was possible by measuring the mid‐peak potentials in cyclic voltammetry and the open‐circuit potentials under electrochemically reversible conditions.
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| Author: | Keyvan Malaie, Fritz Scholz, Uwe Schröder, Harm Wulff, Heike Kahlert |
|---|---|
| URN: | urn:nbn:de:gbv:9-opus-83037 |
| DOI: | https://doi.org/10.1002/cphc.202200364 |
| ISSN: | 1439-7641 |
| Parent Title (English): | ChemPhysChem |
| Publisher: | Wiley |
| Place of publication: | Hoboken, NJ |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2022/09/14 |
| Date of first Publication: | 2022/12/16 |
| Release Date: | 2024/02/26 |
| Tag: | Gibbs energy; electron transfer; manganese oxide; proton insertion; standard potential |
| Volume: | 23 |
| Issue: | 24 |
| Article Number: | e202200364 |
| Page Number: | 7 |
| Faculties: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie |
| Collections: | weitere DFG-förderfähige Artikel |
| Licence (German): |  Creative Commons - Namensnennung 4.0 International |